IS_DEMO

Updated October 13, 2026 by Alex Sorokoletov

IS_DEMO is a Claude Code environment variable: Indicates demo mode. Its release history is not tracked here. It is listed in the official reference.

How to set it

For one session, export it in the shell that starts Claude Code:

export IS_DEMO=<value>
claude

To apply it to every session, add it to the env object of a settings file:

// ~/.claude/settings.json
{
  "env": {
    "IS_DEMO": "<value>"
  }
}

ANTHROPIC_BETAS: Comma-separated beta feature headers.
ANTHROPIC_CUSTOM_HEADERS: Custom HTTP headers (newline-separated Key: Value).
ANTHROPIC_FEDERATION_RULE_ID
ANTHROPIC_ORGANIZATION_ID
ANTHROPIC_WORKSPACE_ID
BETA_TRACING_ENDPOINT: Custom endpoint for beta tracing.
CLAUDE_AFK_COUNTDOWN_MS
CLAUDE_AI_ORIGIN: Overrides the base URL for Claude AI authentication endpoints.

Indicates demo mode

Its release history is not tracked here.

Export it before starting Claude Code (export IS_DEMO=value), or add it to the "env" object in ~/.claude/settings.json to apply it to every session.